READ: Top Pentagon official's testimony during impeachment inquiry

House Democrats on Monday released an additional transcript taken from closed-door testimony during the impeachment inquiry into President TrumpDonald John TrumpDemocrats ask if they have reason to worry about UK result Trump scramble to rack up accomplishments gives conservatives heartburn Seven years after Sandy Hook, the politics of guns has changed MORE.

This time, the testimony is from Laura Cooper, a top Defense official who oversees Ukraine.

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Cooper, the deputy assistant secretary of Defense for Russia, Ukraine and Eurasia, in her testimony said she raised concerns about the U.S. freezing military aid to Ukraine. The impeachment inquiry has examined whether this hold was linked to Trump's requests to Ukraine's president to launch politically motivated investigations.

Cooper also testified she heard from Kurt VolkerKurt VolkerPush to investigate Bidens sets up potential for Senate turf war Senate confirms Brouillette to replace Perry as Energy secretary How Democrats' missing witnesses could fill in the Ukraine story MORE, the former special envoy to Ukraine who has also testified in the House probe, of a possible link between aid and a requested statement from Ukraine's president "disavowing election interference" in the U.S. 

Cooper testified Oct. 23 before the three joint committees leading the House impeachment probe: the House Intelligence, Foreign Affairs and Oversight and Reform committees.

Read Cooper's testimony in the transcript released by House Democrats below: